The first one is glibness and superficial charm.

一个是油滑和表面的魅力。

How do you know the difference between glibness and charm versus just a guy that's confident?

如何区分能言善辩的魅力与仅仅是自信的男性之间的差异？

It has a knack of slipping into place with a sweet silence and glibness of movement, as a billiard ball insinuates itself into the pocket.

机智具有一种悄声息地占据有利位置，俐地表达自己的想法的技巧，就像弹子球巧妙迂回落入袋中一样。

'Yet the man who could write that was in many ways a mere buffoon, who praised his wares with the vulgar glibness of a quack.

“然而，能写出这种话的人在很多方面都不过是个小丑， 他用江湖郎中的庸俗油嘴滑舌来赞美他的商品。